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/***************************************************************************
* Linux PPP over X - Generic PPP transport layer sockets
* Linux PPP over Ethernet (PPPoE) Socket Implementation (RFC 2516)
*
* This file supplies definitions required by the PPP over Ethernet driver
* (pppox.c). All version information wrt this file is located in pppox.c
*
* License:
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
*/
#ifndef __LINUX_IF_PPPOX_H
#define __LINUX_IF_PPPOX_H
#include <asm/types.h>
#include <endian.h>
#include <byteswap.h>
/* For user-space programs to pick up these definitions
* which they wouldn't get otherwise without defining __KERNEL__
*/
#ifndef AF_PPPOX
#define AF_PPPOX 24
#define PF_PPPOX AF_PPPOX
#endif /* !(AF_PPPOX) */
/************************************************************************
* PPPoE addressing definition
*/
typedef __u16 sid_t;
struct pppoe_addr{
sid_t sid; /* Session identifier */
unsigned char remote[ETH_ALEN]; /* Remote address */
char dev[IFNAMSIZ]; /* Local device to use */
};
/************************************************************************
* Protocols supported by AF_PPPOX
*/
#define PX_PROTO_OE 0 /* Currently just PPPoE */
#define PX_MAX_PROTO 1
struct sockaddr_pppox {
sa_family_t sa_family; /* address family, AF_PPPOX */
unsigned int sa_protocol; /* protocol identifier */
union{
struct pppoe_addr pppoe;
}sa_addr;
}__attribute__ ((packed));
/*********************************************************************
*
* ioctl interface for defining forwarding of connections
*
********************************************************************/
#define PPPOEIOCSFWD _IOW(0xB1 ,0, sizeof(struct sockaddr_pppox))
#define PPPOEIOCDFWD _IO(0xB1 ,1)
/*#define PPPOEIOCGFWD _IOWR(0xB1,2, sizeof(struct sockaddr_pppox))*/
/* Codes to identify message types */
#define PADI_CODE 0x09
#define PADO_CODE 0x07
#define PADR_CODE 0x19
#define PADS_CODE 0x65
#define PADT_CODE 0xa7
struct pppoe_tag {
__u16 tag_type;
__u16 tag_len;
char tag_data[0];
} __attribute ((packed));
/* Tag identifiers */
#define PTT_EOL htons(0x0000)
#define PTT_SRV_NAME htons(0x0101)
#define PTT_AC_NAME htons(0x0102)
#define PTT_HOST_UNIQ htons(0x0103)
#define PTT_AC_COOKIE htons(0x0104)
#define PTT_VENDOR htons(0x0105)
#define PTT_RELAY_SID htons(0x0110)
#define PTT_SRV_ERR htons(0x0201)
#define PTT_SYS_ERR htons(0x0202)
#define PTT_GEN_ERR htons(0x0203)
struct pppoe_hdr {
#if defined(__LITTLE_ENDIAN)
__u8 ver : 4;
__u8 type : 4;
#elif defined(__BIG_ENDIAN)
__u8 type : 4;
__u8 ver : 4;
#endif
__u8 code;
__u16 sid;
__u16 length;
struct pppoe_tag tag[0];
} __attribute__ ((packed));
#endif /* !(__LINUX_IF_PPPOX_H) */
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